Sash balance and weather strip structure



May 16, .1933. s. MADSEN SASH BALANCE AND WEATHER STRIP STRUCTURE FiledJune 29, 1931 2 sheet ssheet 1 9 I fizaezzzw May 16,, 1933. s. MADSEN I1,909,698

SASH BALANCE AND WEATHER STRIP STRUCTURE I Fild. June 29. 1951 2Sheets-Sheet 2 Patented May 16, 1933 UNITED STATES PATENT OFFICE SEENMADSEN, OF CLINTON, IOWA, ASSIGNOB- TO CURTIS COMPANIES, INCORZPOBATED0F CLINTON, IOWA, A. CORPORATION OF IOWA SASH BALANCE AND WEATHER STRIPSTRUCTURE Application filed June 29,

The object of my present invention is to provide a novel and inexpensiveand efiective spring sash balance and method of connecting the same witha window sash and Window frame.

In this connection, it is my purpose to provide a means for connectingthe spring balance with the sash and frame in such a way as tofacilitate the convenient and inexpensive and simple assembling andinstalling of the parts.

Another purpose is to provide a means for assembling a spring balance inconnection with a window frame for quickl adjusting the connections forsprings of different lengths.

Another purpose is to provide a weatherstrip structure of very simpleconstruction which may be inexpensively installed.

Another purpose is to provide such a Weatherstrip arrangement by whichthere is afli'orded a double weatherseal and a guide for holding thesash in proper adjustment.-

Another purpose is to provide a weatherstrip construction of peculiarshape and having novel means for holding the weatherstrsip elements inplace.

till a further ob ect is to provide the structure, whereby the objectscontemplated are attained, as hereinafter more fully set forth, pointedout in my claims,and illustrated in the accompanying drawings, in which:p

Figure 1 is a perspective view partly in section of a part of a frameand sash on the line 3-3 of Figure 1.

Figure 4 is a vertical, sectional view illus- 1981. Serial No. 547,612.a

double hung sash assembled in connection therewith equipped with aslightly modified form of Weatherstrip embodying my invention.

Figure 7 is a vertical, sectional View taken on the line 7-7 of Figure6; and

Figure :8 is a perspective view of a Weatherstrip unit including themembers for v engaging the ends thereof and holding it in place.

In the accompanying drawings, I have used the reference numeral 10 toindicate generally the side jamb of a window frame aving the partingstop 11.

In Figure 6, I have shown a slightly different form of frame having theside jamb 10a and the parting stop 11a, the blind stop 12 and the innerstop 13.

In Figure 1, I have shown an ordinary sash 14. In Figure 6, I have shownthe upper and lower sash 15 and 16.

In Figures 1 to 5 inclusive, I have shown one form of weatherstri to 8 aslightly different orm.

Where the form of Weatherstrip shown in Figures 1 to 5 is used, I rovidethe stiles and the ends of the rail 0 the sash 14 with a vertical groove17 (see Figure 3) and a spring groove 17a.

I provide a Weatherstrip unit or section indicated at A and comprisedpreferabl of a single sheet of somewhat resilient s eet metal foldedalong a vertical central line to form a rather narrow U-shaped portion18, the walls of which converge as shown, at 19, whence they-curvesubstantially away from each other and then are shaped to form twoopposite channel-shaped or concave portions 20 with the open slot ormouth 21 of substantial width.

I might for convenience call the parts of the Weatherstrip unit onopposite sides of I I the contracted neck portion 19, part A and toprail of the sash an part A In the'installation, the greater portion ofthe part A is inserted into the vertical slot 17 while the portion A andperhaps 'some oi the portion A projects into a vertical groove 22 in thesi e jamb 10. The groove 22 may or may not be provided with a jmetallinin 23. The resilience of the Weatherstrip unit is such that theleaves or members 20 resiliently engage and press against the walls ofthe groove 22 or the lining as the case mdy be. 4

The portion A may fit rather snugly into the slot 17 but it ispreferably to provide some means for insuring the proper holding of theunit in place against vertical sliding plate 25 has a pin or the like 26extending dciwnwardly into the portion A. (Figure 3.

I will now refer to the form of the device illustrated in Figures 6 to 8inclusive.

In these figures, the jamb 10a is shown provided with an upright groove34 for each sash. The groove 34 may be provided with a metal linin 35.similar to the lining 23 if desired. It sash is provided with a cor--resIponding aligned upright groove 36.

use a Weatherstrip unit B similar in shape to the unit A, except it issubstantially wider so as to afl'ord a housing in whole or in part forthe sprin 37. For holding the unit B in place I ave provided slightldifierent means From that already describe At the top there is provideda plate 38 attached to and preferabl countersunk in the top of the sashand aving a portion which overhangs the groove 36 and termimates in adown-turned curved plate-like portion 39. (See Figures 7 and 8.) Theportion 39 projects into and fits snugly against the wall of theWeatherstrip unit 18. At the lower end of the Weatherstrip unit, Iprovide a similar plate 40 having a similar portion 41, which is u-turned and projeets into the lower end 0 the Weatherstrip unit.

The plate 40 has horizontal projecting spaced parts 42 between which isformed the hook 43 to which the lower end of the spring 37 may befastened as shown for instance in F igurel. The spring is then partiallyhoused within the Weatherstrip unit B.

In Figure 4, I have shown a slightly difneoaeee ferent manner ofinstalling the spring in place. For instance, I have shown at the upperend of the spring a series of holes 44 in the jamb 10a. A screw or thelike 45 may be placed selectively in one of the holes for thus arrangingthe upper end of the spring at the hei ht suitable for the particularsash which is eing hung. At the lower end of the spring instead of themember 40 already described, there may be used the member 46 having thelip-turned pin or the like 47 fastened into the lower end of the sash.The

part 46 has an up-turned member 48 simihaving a number of advantages.

When the parts are all installed, the sash may have lateral play or asit were a sort of floating movement, and yet there will be formed adouble weatherseal made by the engagement of the resilient spaced sidemembers of the Weatherstrip unit with the walls of the groove in thejamb or the lining thereof.

I have shown a simple and inexpensive means for holding the Weatherstripunits in their grooves. This means includes a simple anchoring elementwith a member pro ecting within the channel of the weatherstrip.

There is also disclosed means for both holding the Weatherstrip in placeand anchoring the spring.

In either form disclosed, the groove in the sash ma be shaped to fit theWeatherstrip and the hitter so made as to engage the walls of the sashgrooves under tension. This would have several advantages. Ininstallation, the Weatherstrip units would remain in place afterinsertion until the holding means had been also installed. Theweatherstrip would have a snug fit in the sash, thus avoiding slidingtoward or from the frame.

There is an advanta e in supportin the Weatherstrip on the sas andmaking 1t the length of the sash and projecting it into the jamb,because the Weatherstrip can then be conveniently inserted intoposit-ion or removed for repairs or replacement.

There are several advantages in assembling the spring in the mannerherein disclosed by fastening it to the bottom of the sash and to thejamb. With this arrangement, the spring can be inserted or removedwithout the necessity for removing any of the parts oi the window frame.For instance, a string can be fastened to the upper end of the springand the spring can be dropped down between the sash and the jamb untilits lower end projects below the 80 for means of the string and fastenedto the appropriate screw 45.

With this arrangement, access to the upv per end of the spring 1s easyand convenient. The point where the upper end of the spring is anchoredon the jamb may be quickly and easily varied to suit the conditions ofthe installation. Itis obvious that changes may be made in the detailsof the structure and arrangement of parts of my device as here shown,andit is, of course, my purpose to cover by my claims any modified forms ofstructure or use of mechanical e uivalents, which 'may be reasonablyinclu ed within their scope.

I claim as my invention:

1. In a structure of the kind described, the combination of a framehaving grooves and a sash slidable therein havin aligned "grooves, withWeatherstrip units su stantially channel-shaped, each having a portionreceived n one of said sash grooves and a portion pro ectmg into one ofsaid frame grooves, retaining elements attached to the sash above andbelow the Weatherstrip having parts projecting into the ends of saidchannel shaped Weatherstrip for holding the Weather strip in its groovein the sash.

2. In a structure of the. kind described, the combination of a framehaving grooves and asash slidable therein having aligned grooves, withWeatherstrip units substantially channel-sha ed, each having a portionreceived in one 0 said sash grooves and a portion projecting into one ofsaid frame grooves and with converging walls between said portionsplates inset in the sash above and below the Weatherstrip units havingparts with members projecting into the ends of said weatherstri units,said last-described portions of t e plates being curved to fit the wallof the Weatherstrip.

3. In a structure of the class described, the combination of a framehavin grooves and a sliding sash having aligne grooves, withchannel-shaped weatherstri units, each secured in a sash groove anhaving spaced spring leaves projecting into a frame groove and formingweatherseals at the sides thereof, a retaining element fixed at the topof each Weatherstrip unit havin a port projected into the Weatherstrip,an a staple member having a member secured to sides thereof, means forholdin the weatherstrip units in place to slide with the sash, and sashbalance means substantially housed in the Weatherstrip units.

5. In a structure of the class described, the combination of a framehaving grooves and a sliding sash having aligned grooves withchannel-shaped Weatherstrip units, each secured in a sash groove andhaving spaced spring leaves projecting into a frame groove formingweatherseals at the sides thereof, means for holding the weatherstriunits in place to slide with the sash, an sash balance meanssubstantially housed in the Weatherstrip units, each having one endsecured to the sash, and means for securing means comprising a platehaving a member adapted for insertion .into the end of the weatherstrisaid plate having a curved tongue to w lch a counterbalance spring maybe fastened.

8. In a structure of the class described, the combination of achannel-shaped Weatherstrip having spaced spring leaves at its openside, and having its walls slightly converging between its open and itsclosed side, with a holding means comprising a member adapted to extendacross the edge of the strip at one end, a portion ada ted to beinserted into the end of the weat erstrip, anda portion' adapted to beinserted into one end of a window sash.

9. In a structure of the kind described,

the combination of a frame having grooves 1y channel-shaped, each havinga portion received in one of said sash grooves and a portion projectinginto one of said frame grooves, and plates inset in the sash above andbelow the Weatherstrip having parts with members projecting into theends of said Weatherstrip.

10. In a structure of the class described,

- the combination of a frame having grooves with a sash slidable thereinand weather-' strip units, each secured to and adapted to' slide withthe sash, and having spaced spring leaves projecting into a frame grooveand forming weatherseals at 'both sides thereof.

11. In a structure of the kind described,

the combination of a frame having grooves and a sash slidable thereinhaving aligned grooves with rounded bottoms, with'weatherstrip unitssubstantially channel-shaped, each having a portion correspondinglyshaped and snugly received in one of said sash grooves and a portionprojecting into one of said frame grooves and yieldingly engaging theopposite walls thereof.

12. In a window construction, the combination of a frame having oppositelen hwise grooves, with a sash slidably received in the frame,Weatherstrip units on the sash, having spaced leaves projecting intosaid grooves and yieldingly engaging the opposite walls thereof, andsash balance means partially housed in the Weatherstrip units.

13. In a window construction, the combination of a, frame havingopposite lengthwise grooves, with a sash slidably received in the frame,Weatherstrip units on the sash, having spaced leaves projecting intosaid grooves and yieldingly engaging the opposite walls thereof, sashbalance means secured to the sash and to the frames and partially housedin the Weatherstrip units, and devices for engaging the bottom of thesash and serving the double function of holding the weatherstrips inplace and serving as anchors for the sash balance means.

14. In a structure of the kind described, the combination of a framehaving grooves and a sash slidable therein having aligned grooves, withWeatherstrip units substantially channel-shaped, each having a portionreceived in one of said sash grooves, and a portion projecting into oneof said frame grooves and with converging walls between said portions,means .for olding the Weatherstrip in place to slide with the sash, andmeans for counterbalancing the sash.

15. In a structure of the kind described, v

the combination of a frame having grooves and a sash slidable thereinhavlngaligned grooves, with Weatherstrip units substan-' tiallychannel-shaped, each having a portion received in one of said sashgrooves and a portion projecting into one of said frame grooves, andplates inset in the sash above and below the Weatherstrip having partswith members rojecting into the ends of said Weatherstrip, and meansfor, counterbalancing the sash.

16. The combination of a frame element and a sash element slidabletherein with a members forming weatherstrips and guide means between thesash and frame, each 'ieeaeee each associated with one of said elementsto rock thereon and having spaced resilient leaves frictionally engagingspaced vertical surfaces of the other of said elements.

18. The combination of a frame element,

and a sash element slidable therein, one of said elements havingvertical grooves in its sides a substantially U-shaped Weatherstrip memer associated with the other of said elevertical grooves in its sidesand a sash very tically slidable in the frame with weatherstrip membersassociated with each side of the sash to slide therewith and rockthereon, each having spaced leaves projected into one of said groovesfor .frictionally engagin the sides thereof in any vertical or longituinal adjustment of the sash for formin a weatherseal, substantially thelength 0 the sash.

20. The combination of a frame and a sash slidable therein, providedwith vertical grooves in its side stiles, a Weatherstrip memberfor eachside of the sash substantially coextensive in length therewithada ted tobe installed by insertion lengthwise ll'ltO the groove of the sash, eachsaid Weatherstrip element having a rocking connection with the frame.

SEEN MADSEN.

aving re-

